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Tablet unearthed in Japan's Nara Pref. was 13-century-old multiplication chart: researchAccording to the institute's chief ancient history researcher Kuniya Kuwata, this is one of the oldest confirmed examples of a Japanese chart for the multiplication table, known as "kuku." ...
KASHIHARA, Nara Prefecture—The strip of wood unearthed here may seem like nothing special to the casual observer, but it turns out the fragment is part of a multiplication table about 1,300 ...
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